Type-cylinder typewriter



M. HELM Sept; 2 E924.

TYPE CYLINDER TYPEWRITER Filed Aug- 24 1921 2 Sheets-Sheet. 1

IIIIIIIL- wmgws Sept. 2 1924.

M. HELM TYPE CYLINDER TYPEWRITER 2 Sheets-Shem 2 Filed Aug. 24 1921 Patented Sept. 2, 1

UNITED STA TES MAX nnmvi, or NIEDERSCHOINHAUSEN, NEAR BERLIN, GERMANY.

(GRANTED UNDER THE PROVISIONS TYPE-CYLINDER TYPEWR-I'IER.

Application filed August 24, 1921. Serial No. 494,971.

To all whomritmag concern Be it known that of Germany, resldlng near Berhn, Germany 1 lVIAX HELM, a citizen at Niederschonhausen,

, have invented certain new and useful Improvements in Type-Cylinder Typewriters I have filed or which applications in Germany July 10, 1920;

Hungary, July 6, 1921; France, July July 1921; Austria, July 7,

1921; Czechoslovakia,

9, 1921; England, July .11, 1921), of

which the following is a specification.

My invention relates to a type cylinder typewriter of the kind described and" illus trated in the specification of Letters Patent of the United States Friedrich von Hefne is provided with a space 914,278 granted to r-Alteneck and which divided according to the letters of the alphabet (henceforward called the alphabet 'cator, in which either table) and an indithe indicator and the writing key are connected, or in which the indicator and the writing-key separately.

are operated the direct action of the" additional key or keys an additional movement of the type cylinder being effected, so that in the same position of the indicator another character comes into position for printing. vIn consewithstanding the desired 'ment of the type cylinder,

tional movement with thereof it 1s thus not necessary, notadditional moveto make any addieither the right or the left hand, that is to say the machine is manipulated in the merly, except that struck chosen,

same manner as forwhen a character is one or other of thewriting keys is thus rendering it possible. to write large and small characters without empl0ying a special shiftkey.

In the drawings afiixed to this specifica- ,tion and forming part thereof a typewriter embodying my invention is illustrated diagrammatically way of example. In the drawings Fig.1 is aside elevation, and

' Fig. 2 a plan.

Referrlng to in'der spindle 1 with mounted so as to revo the drawings, the type cylthe type cylinder 2 1S lve :onja bearing plate,

shown by p the OF THE ACT OF MARCH 3, 1921, 41 STAT. L., 1313.)

which in its turn is freely supported to osc'illate by an oscillating yoke 4 around the seating 5 and bearing pin 6, the latter being mounted on the typewriter frame 7. The placing in the desired position of the characters on the type cylinder 2 is effected by the manipulation of the handle 8. attached to the indicator 9, which can be easily moved. The upper end of the indicator 9 passes into a spherical head 10, which is mounted so that it may be pressed into the cylinder boi'e'll of the bearing standard 12. Underneath the indicator 9 is placed the alphabet table 13, which, as a result of the present invention, is considerably reduced in size and contains only 42 character spaces, whereas the usual form of the alphabet table, as dotted lines indicating the character spaces'14,.containcd 8 1 character spaces. In the point of the indicator 9 is attached, after the manner of a ball connec tion, vid'ed with teeth 17. As the actuating rod 16 is moved backwards and forwards,- the toothed wheel l8,'which is furnished with a groove and ismounted loosely on the type cylinder spindle and which engages with the guiding rod pin '19 in a cam groove 20 of the type cylinder spindle 1, is rotated and likewise a rotary motion is imparted to the type cylinder spindled with the type'cylinder 2." A key lever 21, which is mounted, on the spindle 22, in the frame of the machine, is conneeting with the bearing plate 3' by means of the'guiding rod 24 so as to form a joint at the point 25 or 26. A second key 27 is jointed to the key 21 at the point 28. The guiding rod 30 forkey 27 is jointed thereto at the point 29, and'actuates at the point 81 a bell crank lever 32, which is mounted at point 33' on the frame 3 1 in an actuatingro'd 16, which is prosuch a manner that it is free to oscillate coming into action at point 39. 'A spiral spring 40, which has an abutment in the frame of the machine 4-1, retains the key lever in its position of rest. According to thc'kind or character which is required to be printed after the indicatorpointflhas been placed in the proper position, either key 21 (for the small characters) or key 27 (for the capitals) is pressed It is possible to attach a third key, and it this third key is made use of, the alphabetic table, instead of being composed of 84 character spaces, would require only 28'. The numl'ier of the character spaces on the alphabet table is reduced in proportion to the number of the writing keys introduce-d additionally that is to say that if thevuse of one writingkey involves 84 character spaces, if two writing keys are employed only 2 character spaces are required, while: with three writing keys 28 character spaces are em ployed and with four writing keys 21.

The additional movement of the type cylinder consequenton the increase in the mini ber' of keys may be in principle two-fold and the type cylinder may in the first instance have imparted to it an additional movement in a rotary direction, and in the second instance in a longitudinal direction. The drawing illustrates only a constructional type in which the additional movement is imparted in the direction of rotation If on the other hand the additional movement imparted to the type cylinder is-in a longitudidirection, the gear wheel'lS with the guide groove 36, in which thebell crank lever 32 engages with the pin: 35, must be mounted tightly on the: type cylinder spindle. In such a case it will be necessary forthe types on the type cylinder to be arranged in a correspondingly different manner.

I wish it to be understood that I do not w desire to be limited to the exact details of coi-istruction shown and described, for obvious modifications will occur to a person skilled in the art.-

I claim r n I 1 In a typewriter in cornbi-natioina type cylinder and a spindle carryii-ig said cylinde'i', means for imparting to said, cylinder a 3. In a t ewriter in combination a t. e

keys for carrying said with said rack,

cylinder and a spindle carrying said cyli-irder, means for imparting to said cylinderja rotary 'a-nd'a longitudinal motiorn a combi-v nation of levers for transversal moving said cylinder, another combination of lovers for impartingto it a helical motion, a key for actuating only said first combination of levers a second key for simultaneously operating both said combinations of levers.

4. In typewriter in combination, a type cylinder and a spindle carrying said cylinder, means for imparting to said cylinder a rotary and a longitudinalmotion, a separate key for displacing said cylinder in trans verse direction and separate means for cans ingg'said cylinderto continue'inone of the motions brougl-it about by said first mentioned means. i

5. 111a typewriterin combination, a type cylinder and a spindle carrying said cvlnr der, means for imparting to said cylinder at rotary and a longitudinal motion, a separate key for displacing said cylinder in transverse direction and a second key for causing said cylinder to continue in one of the motions brought aboutby said first mentioned means. 6a Ina typewriter in combination, a ty'j cylinder and a spindle carrying-said. cylinder, means for i'n'ipartingr to said cylinder a rotary and a longitudinal motion, a key. for displacing said cylinder in transverse direction and a second key for causingsaid cylin- .der: to continue in one of the motions brought about by said first mentioned. means, said second key being adapted,,ron being; depressed, to also operate said first key. N

7. A typewriter comprising; in combination, a grip,an alphabet table in front of said grip, a type cylinder adapted to move in accordance with the position of said. vgrip relatively to said table and a plurality of cylinder into printing position, oneof said keys being arranged for displacing said cylinder in transverse direction, and another for causing said cylinder to continue in the'nao'tion brought a boutby said grip} i k 8. In a ty writer combinatiom aty pe qvlinder anci h spindle carrying said cylinder, a rack: movable transversely to said gear with said rack, a grip for moving said spindle and said rackin thehdirection of the spindle axis, a key for depressing said spindie and means comprising an additional. key for changing. the angular gear wheel on said spindle.

9. In a typewriter in combination, aty pe cylinder and a spindle carrying said cylinder, a rack movable transversely to said spindie and a gear wheel on saidspijndlc in gear ing into a canrgroovc in. said spindle .a grip for mov ng said spindle and said rack in the ,spin-dleandagcar wheel ons'aidspindle in 1 position: of said i 'apin' on said wheel proyectdirection of the spindle axis, a key for depressing said spindle and an addltional key position of said gear Wheel means comprising for chang ng the angular on said spindle.

said pointer, a type cylinder adapted to move in accordance with the position of said pointer relatively. to said table, a key for merely depressing said spindle and another key for depressing it and imparting to it an additional motion.

In testimony whereof I afliX my signature.

' MAX. HELM 

